Analytic Trigonometry · Challenge problem

$x=\dfrac{\pi}{3}+\dfrac{\pi n}{3}$

$x=\dfrac{3}{\pi}+\dfrac{\pi n}{2}$

$x=\dfrac{\pi}{3}+\dfrac{\pi n}{2}$

$x=\dfrac{\pi}{3}-\dfrac{\pi n}{2}$